Grinding implement.



S. MENYHERTKL V,. SMITH. @BINDING IMPLEMENT,

AFPLIGATION FILED Nov. 4, 1913.

1,@89y24'm I Patented Mar. 3, 1914.

llllllllllllllllllllllA UNITED STATES PATENT oEEIoE.

STEHEN MENYHRT AND VENDEL SMITH, OF NEW BRUNSWICK, NEW JERSEY.

GRINJDING IMPLEMENT.

Specication of Letters Patent.

Patented Mar. 3, 1914.

Application led November 4, 1913. Serial No. 799,234.

T0 all whom it may concern:

Be it known that we, (l) STEPHEN MENY- irR'r and (2) VENDEL' SMITH, (l) a subject. of the King of Hungary and (2) a citizen of the United States, and residing at New Brunswick, in the county of Middlesex and State of New Jersey, have invented certain new' and useful improvements in Grinding Implements, of which the following is a specification. 1

This invention relates to grinding imple-y ments.

rllhe object of the invention is to provide a simple and thoroughly etlicient article of the above character, which shall preferably be hand driven, and in the use of which not only flatsurfaces may edectively be ground, but mechanically accurate bevels may be imparted to knives, plane-bits, chiscls, and the like.

`With the above and other objects in view, as will appear as the nature of the invention is better understood, the same consists in the novel construction and arrangement of parts of a grinding implement as will be hereinafter fully described and claimed.

In the accompanying drawing, forming part of this specification and in which like characters yof reference indicate corresponding parts: Figure 1 is a View in side elevation of a grindin implement constructed in accordance witi the present invention. Fig. 2 is, a vertical longitudinal sectional view through the implement. Fig. 3 is a fragmentary detail sectional View showing a part of one of the grinding wheels employed with the implement.

Referring to the, drawings, 1 designates the base of the implement, ha` ing combined, preferably integral therewith, two standards 2 and 3 having suitable journals formed therein in which is mounted a shaft 4. This shaft extends at both ends beyond the standardsV and has keyed to it at one terminal a bevel gear 5, and at its other end an abrading or grinding wheel 6 which may be of metal coated with an abradant or may be wholly ofan abradant as may be preferred.

Mounted on the shaft between the standards is an abrading wheel 7 which may be constructed i n the same manner as the wheel C and is preferably hollow, and has one edge 8 beveled to coperate with a similarly bcveled edge 9 formed on an abradingwheel 10 also mounted .upon the shaft, the two wheels being held combined by screws 11, of which two are herein shown, the heads of the screws being countersunk in or bearing upon the head 12 of the wheel 7, 'while the outer ends of the screws are threaded into the wheel 10. The head 12 of the wheel 7 1s provided with a socket,... 13, and the wheel 10 with a similar socket 14, and these two sockets are designed to receive a coiled spring l5 surrounding the shaft and bearing at its ends against the walls of the socket. The'function of this spring is to cause the two wheels to separate, as shown in Fig. `3, when t-he screws 11 are loosened. so as to increase the size of the beveled groove or channel formed between the two wheels by the inclined faces 8 and 9. To permit access to the screws 11 for the purpose above described, the head 16 of the wheel 7 is provided with two'openings 17 that are disposed 'in alinement with the screw heads and through which a screw driver may be inserted. Below the inclines 8 and l9, is formed a diamond-shaped channel or groove 18 formed by oppositely beveling the opposed faces of the wheels 7 and 8, and lthis groove is designed to permit the edge of an implement being sharpened, say of a knife, of beinginserted any desired distance between the two wheels without contacting, at its edge, with the metal thereof.

The means for driving the shaft 4 comprises a relatively large gear wheel 19 which is carried by a stub shaft 20 mounted in an obliquely-disposed bearing 21 carried by the upper end of the standard 3, the oblique disposition of the'wheel 19 permitting free application of a tool of any character to the entire surface of the whecl'7.

In order to permit the wheel 7 to have a sliding movement on the shaft 4, and yet positively turn therewith, a key 22 is provided which is seated in a key-way in the shaft and engages a similar key-way in the head 16, the key-way being of sufficient length to permit the. desired longitudinal adjustment of the wheel 7.

Fromy the foregoing description, it will be seen that the implement of this invention, while simple in character, will be found thoroughly efticient for the purposes designed, and may' be readily mounted upon a table or the like and used for house-hold purposes.

What-is claimed as new and desired to besecured by Letters Patent of the United States iszy 1. An implement of the class described comprising two grinding Wheels, one of which is ongitudinally adjustable relative to the other, the opposed faces of the wheels being beveled in opposite directions adjacent t0 their edges, and also oppositely beveled to provide a channel concentric with the peripheries of said Wheels.

2. An implement of the class described comprising two rinding Wheels, the opposing faces Yof which are beveled in opposite directions, one of said wheels being hollow and formed with openings, a spring interposed between the wheels, and screws alined with said openings for adjusting one of the Wheels relative to the other.

3. An implement o the class described comprising a grinding wheel having one edge beveled, a second wheel adjustable to and from the first and having also a beveled edge, each of said wheels being oppositely beveled near its eriphery to provide a channel, and means or adjusting one wheel relative to the other. v

In testimony whereof we alix our signatures in presence of two witnesses.

STEPHEN MENYHERT. VENDEL SMITH.

Witnesses:

ANTHONY GRUrssNER, STEBHEN BENDER. 

